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It is known that about 13% of people are left-handed. If we select 11 people at...

It is known that about 13% of people are left-handed. If we select 11 people at random, let Y count the number that are left-handed. Round the following probabilities to the nearest 0.0001. a. Explain why this random variable Y fits all four requirements for a binomial random variable. Include each requirement and how this situation satisfies each one.

b. Compute the probability that exactly 5 of the people in the sample are RIGHT handed.

c. Compute the probability that at least 4 of the people are left handed.

d. Compute the probability that between 3 and 5 (inclusive) of the people are left handed.

Math   Statistics-And-Probability   
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